Joseph Anthony Merkel, MD
Psychiatry Physician · Pasadena, CA
Joseph Anthony Merkel, MD is a psychiatry physician with a practice address in Pasadena, California, and NPI 1548722267, issued on Apr 2, 2019. Check the license (California 20835, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph Anthony Merkel
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 20835 CA
320636 NY
Self-reported in NPPES; status is on the state search - Practice location
- 595 E Colorado Blvd, Pasadena, CA 91101
- Phone
- (626) 765-4045
- Enumerated
- Apr 2, 2019
- Record last updated
- Jul 17, 2026
- Medicare enrollment
- Enrolled (PECOS I20240405002274); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 595 E Colorado Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph Anthony Merkel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Erie County Medical Center CorporationBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Anthony Merkel among 8,673 psychiatry physician records in California
Joseph Anthony Merkel, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2019 · median 2005 among the 3,295 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Pasadena → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Elizabeth Casalegno, M.D.Pasadena, CA 911011649444787
- Katrine Enrile, M.D.Pasadena, CA 911011952514051
- Elyse Eskridge, M.D.Pasadena, CA 911011386827475
- Todd Hutton, M.D.Pasadena, CA 911011760535959
- Steve Khachi, M.D.Pasadena, CA 911011427345222
- Roy Kushel, M.D.Pasadena, CA 911011073645453
- Sonya Martin, M.D.Pasadena, CA 911011215241492
- Giovanna Pegolo, M.D.Pasadena, CA 911011740390293
Common questions
What is Joseph Anthony Merkel, MD's NPI number?
Joseph Anthony Merkel, MD's National Provider Identifier (NPI) is 1548722267, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Anthony Merkel, MD located?
The NPPES record lists a practice address at 595 E Colorado Blvd, Pasadena, CA, 91101. Phone: (626) 765-4045. Providers update this record themselves, so call before visiting.
How can I verify Joseph Anthony Merkel, MD's license?
NPPES lists California license number 20835, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.